//
//  Atom.m
//  Class
//
//  Created by mac on 16-4-12.
//  Copyright (c) 2016年 zzn. All rights reserved.
//

#import "Atom.h"

@implementation Atom

- (id) init
{
    if ((self = [super init])) {
        _chemicalElement = @"None";
    }
    return self;
}

- (NSUInteger)massNumber
{
    return 0;
}
@end
